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qijiongli金虫 (著名写手)
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推荐个物理网站physicsforums.com，很好的，还可以问作业题^^
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qijiongli
金虫 (著名写手)
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这是一个问Newton第二定律的问题，很不错的阿 This may be a weird question, but oh well. Way back during the Scientific Revolution it would have been possible to define mass as acceleration divided by force right? Then you'd have F = a/m, and the units for force would be different than they are now. http://www.physicsforums.com/showthread.php?t=215473 [ Last edited by qijiongli on 2008-2-19 at 19:33 ] |
2楼2008-02-19 19:32:43